Institutional [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Institutional | Harding Loevner Frontier Emerging Markets Portfolio | Institutional Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.95% | 8.77% | 10.42% | (18.92%) | 10.18% | 0.11% | 10.89% | (15.44%) | 25.09% | 2.16% |